Grasslin Defrost Timer (Freezer Units Only); Defrost System - True T-35 Installation Manual

True Food Service Equipment, Inc.
FREEZERS DEFROST TIME CLOCK OPERATION
T-19F, T-19FZ, T-23F

Defrost System!

This defrost system is time initiated / time
terminated. The refrigeration system does not
restart until the defrost cycle has timed out.
REQUIRED TOOLS:
• Phillips Screwdriver
• 1/4" Nut Driver or Socket
Locating The Defrost Timer:
See page 2 for removing louver grill instructions.
* T-23F-2 / T-23DT Grill must be reattached
correctly for proper operation.
Single Door Models:
Defrost timer is located in the lower right corner
behind the louvered grill (inside galvanized
electrical box).
Outer most dial. White tabs represent 15 minutes of
defrost time.
Factory setting 2 am, 8 am, 2 pm, 8 pm. 15
minutes in length. TRUE recommends maximum
15 minute defrost cycles & minimum 4 defrost
periods per day.
Setting the timer:
(UNPLUG UNIT FROM
POWER SUPPLY!)
DO NOT SET THE TIME BY
ROTATING THE "OUTER" DIAL.
Turn the minute hand clockwise until the time of
day on the outer dial is aligned with the triangle
marker on the inner dial (two o'clock position).
The following procedure may be followed to
customize your needs.
STEP 1
In order to program the time to begin the defrost
cycle, flip the white tabs out to set the defrost time.
To eliminate a defrost time flip the white tabs back
toward the center of the Defrost Timer.
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INSTALLATION / OPERATION INSTRUCTIONS
ALL OTHER UNITS.
Defrost System!
This defrost system is temperature
terminated, however the time clock has been
designed with a time termination back-up.
REQUIRED TOOLS:
• Phillips Screwdriver
• 1/4" Nut Driver or Socket
Locating The Defrost Timer:
See page 2 for removing louver grill
instructions.
Two Door Models:
Defrost timer is located in the middle of the
cabinet, behind the louvered grill. Timer is
mounted to the left of the centered ballast
box (Inside of gray timer box).
Three Door Models:
Defrost timer is located on the left upright
post behind the louvered grill (Inside of gray
timer box).
Setting the timer:
(UNPLUG UNIT FROM
POWER SUPPLY!)
DO NOT SET THE TIME BY
ROTATING THE "OUTER" DIAL.
Turn the minute hand clockwise until the
time of day on the outer dial is aligned with
the triangle marker on the inner dial (two
o'clock position).
The following procedure may be followed to
customize your needs.
STEP 1
In order to program the time to begin the
defrost cycle, flip the white tabs out to set the
defrost time. To eliminate a defrost time flip
the white tabs back toward the center of the
Defrost Timer.
NOTE
TRUE recommends a minimum 30 minute (2
tabs) defrost cycle three times per day.
(Except T-19F/19FZ/23F).
............ www.truemfg.com ............
Outer most dial.
White tabs represent
15 minutes of defrost
time.
Time of day.
Inner most dial.
Defrost Timer Box Image 1
All models except T-19F, T-19FZ, T-23F.
The white tabs located on the outmost area
of the time clock have been factory set for
(6:00 a.m., 2:00 p.m., and 10:00 p.m.).
Each tab represents 15 minutes of defrost
time. Notice that at each defrost time two
white tabs are set for 15 minutes each for a
total of 30 minutes of defrost.
WARNING:
High usage, high temperature, and
high humidity may require additional
defrost settings per day. Once clock
is set & grill is correctly reinstalled
cabinet can be plugged in.
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